Peters



(No Model.\

A. s. e T. BOLTON. METHOD OF DRAWING WIRE.

Patented Feb. 5, 1889.

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ALFRED S. BOLTON AND THOMAS BOLTON, OE OAKAMOOR MTLLS, NEAR (,IHEADL 1, COUNTY OF S'IAFFORD, ENGLAND.

METHOD OF DRAWING WIRE.

SPECIFICATION forming part of Letters Patent No. 397,271, dated February 5, 1889.

Application filed June 28, 1887, Serial No. 242,725. (No model.) Patented in England July 9, 1886, No 8,977; in Germany May 13,1887,No.42,610; in France July 21, 1837, No. 184,923, and in Belgium July 25, 1887,11'0. 78,843,

To all whom it may concern-.-

Be it known that we, ALFRED SOHIER BOL- TON and THOMAS BOLTON, copper and brass manufacturers, both of Oakamoor Mills, near Cheadle, in the county of Stafford, England, have invented an Improved Mode of Drawiu g \Virc, of which the following is a specification.

Our invent ion is also the subject of Letters Patentin Great l-lritaimNo. 8,077, dated July 9, 1886; in Germany, No. 42,610, May 13, 1887; in France, No. 18%,.123, July 21, 1887, and in Belgium, No. 78,343, July 25, 1887.

Our invention relates to a novel method of I5 drawingwire through several stages at one op era ti o n It has already been proposed to subject: wire to a series of drawings through a set of dies mounted on one draw-bench, and the use 20 of complicated. mechanism has been suggested for adj ustingthe speed of travel of the wire in its progress through the set of dies. To render this complicated mechanism unnecessary, and yet to give the proper speed of travel to the wire, is the object of the present invention. When subjecting wire to the action of two or more dies consecutively ina draw-bench arranged after the well-known manner, the wire led from the hank on the reel and passed through the first die of the set is laid around a driven block or pulley, whence it passes through the second die, then around a second driven block or pulley, and so on until it reaches the take-up drum.

3 5 According to our invention we drive all these blocks or pulleys at a surface speed in excess of the maximum rzpte of speed intended to be imparted to the vire, and we rely on the friction of contact set up between the pulleys and the lapped wire to clifect the requisite draft, so that whatever elongation of the wire takes place in passing through the dies the travel of the wire between each die adjusts itself in proportion to the amount of elongation and the speed at which it is coiled onto the finishing or take-up drum.

In the accompanying drawings, Figure 1 is a side elevation. Fig. 2 is a plan view of a draw-bench arranged to carry out our in1- proved mode of drawing wire.

A is the bench top and framing.

B B B are the, dies mounted in the usual or it may be in any other convenient manner and set at suitable distances apart. Between these dies are mounted flanged or grooved drawing blocks or pulleys C. These blocks 0 are carried on the ends of axles C, which turn in hearings fitted to the draw-bench.

D is a reel mounted loosely on a fixed axle, D, standing up from the draw-bench. This ()0 reel is charged with the hank of wire to be drawn, and delivers its wire to the first die B under the stress of the draft imparted thereto during the drawing operation.

E is a vertical shaft mounted on a foot-step carried by the end framing of the draw-bench and projecting upward through a fixed collar or hearing fitted to the upper face of the bench.

F is the finishingdrum for taking up the drawn wire and imiintaining a proper draft thereon as it leaves the last of the series of dies B. This finishing or take-up drum is locked to its shaft, so as to rotate therewith.

Motion is imparted to the several blocks O O and the drum F from two overhead shafts, G G Fig. 1. Each of these shafts is furnished with four grooved band-pulleys, from which bands lead down to grooved pulleys fitted to the axles O and to a transverse 8o shaft, G, respectively. Keyed to the shaft G is a miter-wheel, G which gears into a miter-wheel, E, loose on the vertical shaft E.

A sliding clutch, E fitted to this shaft, serves to lot-l; the miter-wheel to the shaft E and start the machine. \Yhen, however, the drawing is required to cease, the attendant, by lifting the clutch-lever E", will lift the clutch from contact with the boss of the miter-wheel E, when the rotation of the take-up drum, and consequently the draft on the wire, will cease. The blocks 0, however, will continue to rotate and slip in the coils of the wire. In this arrangement it will be seen that no pr0- vision is made for adjusting the speed of the 9 5 blocks or pulleys, such a contrivance being some].

unnecessary, owing to the continual slip of vention, we wish it to 'be understood that we the lapped wire upon the blocks G.

\Ve n'ta y state that we prefer to drive all the blocks at one eireuinferential speed, as the machine is then adapted for the lightest or heaviest drafts which the material operated upon is intended to receive at each die.

From the foregoing explanation it? will he understood that in availing ourselves of the slip of the wire on the driven blocks or pulleys we secure proper drafts on the wire I I l without providing any special and expensive A mechanism for adjustment of their speed, the 3 'lriet ion between the draving-blocks and the wire musing thelatter totravel exaettv in neeordaneo with the rate at \vhieh the finishingdrum winds it up after passing through the last die.

Having no\\' set l'orlh the naluro of our in- (tltlllll The in'lprovenient in. the art of drawing wire through a sueeessive'series ot dies at; one operation, eonsi ting in subjeeting the wire hetuveen the several dies to the aetionm' suewssive pulling surtaees running at; a veloeity in excess of theinaximuni rate of speed imparted to the Wire and mrmitting the draft het'ween the sueeessive dies to regulate itsell by the slip j)ing of the Wire on said snrt'i'lees, suhst'antiially as herein described.

Aljlil'il ll) l llt'H/PON, 'lllOS. l-iOl'flON.

Witnesses:

\V. A. (,owmcsiLuv, JNU. N. MALLIGTI, filer/rs lo Poddorls d n Sons, Sell-s2, JJunley. 

